Amanda took it all in stride. Shrunk to a third scale, her hair grown long, her clothes unevenly changed and gradually made more and more revealing... This was all in a day's work for Amanda.
Granted, the actual "work" had mostly been forgotten and given way to play that was only going to escalate, but that, too, was all in a day's work for Amanda.
Non-canon is a term used to describe a moment in time where characters can and will act in ways completely separately from their usual selves. Examples can include sudden romantic attraction with no character basis, inexplicable changes in body, persona, mood, or other defining features, and/or characters from separate realities having interactions ranging from the relatively normal to the downright bizarre (ie: Superman and John Madden having a passionate discussion on the use of Kryptonite in Badminton while sipping tea in Donald Trump's villa).
You say you're not 100% satisfied with this, and I'm genuinely curious, what would you have changed/are not satisfied with?
Edit: BTW, I've been following your webcomic since Grace's birthday party arc (The one where Susan turns into a man and makes out with FemJustin), but this is my first interaction with you, so I'm sort of fanboy-ing all over my desk right now but doing my best to not make it weird. And I just noticed I failed at it. So... there's that.
Some appealing character ideas deserve a longer backstory than a one-shot drawing.
Is there a way to see that in a process?